ShenZhen BL-M8821CU1 User Manual

Product Specification

Revision V1.1

Date 2019-07-15

Model Name BL-M8821CU1

Product Name IEEE 802.11a/b/g/n/ac(1T1R) USB WIFI+BT Combo Module

Bilian Approve Field

Engineer

Can Zhang

Engineer

QC

Customer Approve Field

QC

Manufactory

Sales

Purchasing

Shenzhen Bilian Electronic Co., Ltd

Address: 10-11F, Building A1, Huaqiang idea park, Guangming district, Shenzhen.Guangdong, China

Homepage: www.b-link.net.cn

Table of Contents

Revision History ......................................................................................... 1

1. Introduction .............................................................................................................. 1

1.1 General Description ............................................................................................ 1

1.2 Features .............................................................................................................. 1

1.3 Applications ......................................................................................................... 2

2. Functional Block Diagram .................................................................................... 2

3. Product Technical Specifications ........................................................................ 2

3.1 General Specifications ........................................................................................ 2

3.2 DC Power Consumption ...................................................................................... 3

3.3 RF Specifications ................................................................................................ 4

4. Pin Assignments ..................................................................................................... 6

5. Application Information ......................................................................................... 7

5.1 Typical Application Circuit ................................................................................... 7

6. Mechanical Specifications .................................................................................... 9

7. Others ....................................................................................................................... 9

7.1 Package Information ........................................................................................... 9

7.2 Storage Temperature and Humidity .................................................................. 10

7.3 Recommended Reflow Profile ........................................................................... 10

0

Revision History

Date

2017/04/06 0.1

2017/09/26 1.0

2019/06/18 1.1

Document

Revision

Product

Revision

V0.1

V1.0

V1.1

Description

Preliminary release

Update the product pictures

Revise the descriptive error and the dimension of product

1. Introduction

1.1 General Description

BL-M8821CU1 is the module designed by a highly integrated IEEE 802.11a/b/g/n/ac MAC/Baseband/RF WLAN

and Bluetooth Baseband/RF single chip. It combines a WLAN MAC, a 1T1R capable WLAN baseband, BT

Protocol (LM , LL and LE),BT Baseband, modem, and WLAN/BT RF in a single chip. The module provides a

complete solution for a high-performance wireless LAN and Bluetooth device. The BT controller supports BT 4.2

system and compatibles Bluetooth 2.1+EDR.

Figure 1 Top View Figure 2 Bottom View

Note: The above pictures are for reference only

1.2 Features

 Operating Frequencies :

BT:2.402~2.48GHz(BT)

2.4GWIFI:2.412~2.472GHz(USA 11Channels, Europe and others 13 channels)

B5GWIFI:5.18~5.24GHz/5.745~5.825GHz

 Host Interface is USB 2.0 for WLAN and BT controller

 IEEE Standards : IEEE 802.11a/b/g/n/ac

 Wireless data rate can reach up to 433.3Mbps

 Bluetooth Low Energy Support
 Connect to external antenna through the half hole
 Power Supply:3.3V±0.2V

1

1.3 Applications

 MID

 IP Camera

 STB

 Smart TV

 E-book

 Other devices which need to be supported by wireless network

2. Functional Block Diagram

Figure 3 BL-M8821CU1 block diagram

3. Product Technical Specifications

3.1 General Specifications

Item Description

Product Name BL-M8821CU1

Main Chip RTL8821CU-CG

Host Interface USB 2.0

IEEE Standards IEEE 802.11a/b/g/n/ac

Operating Frequencies

BT:2.402~2.48GHz(BT)

2.4GWIFI:2.412~2.472GHz(USA 11Channels, Europe and others 13 channels)

B5GWIFI:5.18~5.24GHz/5.745~5.825GHz

2

Modulation

Working Mode

Wireless Data Rate

Rx Sensitivity

WiFi:

802.11b: CCK, DQPSK, DBPSK

802.11a/g: 64-QAM,16-QAM, QPSK, BPSK

802.11n: 64-QAM,16-QAM, QPSK, BPSK

802.11ac: 256-QAM,64-QAM,16-QAM, QPSK, BPSK

BT:
8DPSK,π/4DQPSK,GFSK

Infrastructure, Ad-Hoc

WiFi:

802.11b: 1, 2, 5.5, 11Mbps

802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54Mbps

802.11n: HT20 reach up to72.2Mbps, HT40 reach up to150Mbps

802.11ac: MCS0~8, VHT20 reach up to 173.3Mbps, VHT40 reach up to 239Mbps,

MCS0~9, VHT80 reach up to 433.3Mbps

BT:

1Mbps for Basic Rate

2,3 Mbps for Enhanced Date Rate

-96dBm (Min)

Antenna Type

Dimension(L*W*H) 13.0*12.2*1.5mm (L*W*H)

Power Supply 3.3V

Power Consumption Standby 82mA@3.3V (Max)

Clock Source 40MHz

Working Temperature -10

Storage Temperature -40

Connect to external antenna through the

±

0.2V

TX mode 420 mA@3.3V (Max)

°

C to +50°C

C to +70°C

°

，

half hole

Tolerance: ±0.15mm

ESD CAUTION: Although this module is designed to be as robust as possible, Electrostatic Discharge (ESD)

can damage this module. It must be protected from ESD at all times and handled under the protection of ESD.

3.2 DC Power Consumption

Vcc=3.3V，Ta = 25 °C，unit: mA

Supply current Typ. Max

Standby (RF disabled) 95 105

802.11b 1Mbps 11Mbps

Supply current Typ. Max. Typ. Max.

TX mode

Rx mode

341

93

368 331 381

126 92 128

3